OpenStack Networking (Neutron)
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# Copyright 2012 OpenStack Foundation
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from neutron_lib import context
from oslo_config import cfg
from oslo_log import log as logging
from oslo_middleware import base
import webob.dec
import webob.exc
LOG = logging.getLogger(__name__)
class NeutronKeystoneContext(base.ConfigurableMiddleware):
"""Make a request context from keystone headers."""
def __call__(self, req):
ctx = context.Context.from_environ(req.environ)
if not ctx.user_id:
LOG.debug("X_USER_ID is not found in request")
return webob.exc.HTTPUnauthorized()
# Inject the context...
req.environ['neutron.context'] = ctx
return self.application
def pipeline_factory(loader, global_conf, **local_conf):
"""Create a paste pipeline based on the 'auth_strategy' config option."""
pipeline = local_conf[cfg.CONF.auth_strategy]
pipeline = pipeline.split()
filters = [loader.get_filter(n) for n in pipeline[:-1]]
app = loader.get_app(pipeline[-1])
for filter in filters:
app = filter(app)
return app